Experimental Effects of Acute Exercise on Episodic Memory Function: Considerations for the Timing of Exercise
Experimental Effects of Acute Exercise on Episodic Memory Function: Considerations for the Timing of Exercise
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DOI：
10.1177/0033294118786688
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发表时间：
2019-10-01
影响因子：
2.3
通讯作者：
Loprinzi, Paul D.
中科院分区：
文献类型：
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作者：
Haynes, Ames T.;Frith, Emily;Loprinzi, Paul D.
我们以前的工作采用受试者之间的随机对照试验设计表明，运动之前的记忆编码是更有利的，在增强回顾性情景记忆功能相比，运动期间或之后的记忆编码。本实验评估这种潜在的时间效应急性运动记忆功能，同时采用一个受试者内，平衡设计。在一个平衡的顺序中（通过拉丁方块），24名参与者完成了四次访问，包括（1）在记忆编码之前锻炼（中等强度的步行），（2）在记忆编码期间锻炼，（3）在记忆编码之后锻炼，以及（4）对照访问（没有锻炼）。回顾性记忆功能（短期和长期; 24小时随访）通过多试验单词表进行评估。前瞻性记忆从一个基于时间的任务进行了评估。与所有其他访问相比，在记忆编码之前进行锻炼的访问中，短期记忆更大（F = 3.76; P = 0.01; eta（2）= 0.79）。长期记忆也有类似的结果，对前瞻性记忆表现没有显著影响。我们提供了强有力的证据表明，与不运动以及在记忆编码期间和之后运动相比，记忆编码之前的急性中等强度运动在增强短期和长期记忆功能方面是最佳的。
Our previous work employing a between-subject randomized controlled trial design suggests that exercising prior to memory encoding is more advantageous in enhancing retrospective episodic memory function when compared to exercise occurring during or after memory encoding. The present experiment evaluates this potential temporal effect of acute exercise on memory function while employing a within-subject, counterbalanced design. In a counterbalanced order (via Latin squares), 24 participants completed four visits including (1) exercising (moderate-intensity walking) prior to memory encoding, (2) exercising during memory encoding, (3) exercising after memory encoding, and (4) a control visit (no exercise). Retrospective memory function (short term and long term; 24-hour follow-up) was assessed from a multitrial word list. Prospective memory was assessed from a time-based task. Compared to all other visits, short-term memory was greater in the visit that involved exercising prior to memory encoding (F = 3.76; P = .01; eta(2 )= .79). Similar results occurred for long-term memory, with no significant effects for prospective memory performance. We provide robust evidence demonstrating that acute moderate-intensity exercise prior to memory encoding is optimal in enhancing short-term and long-term memory function when compared to no exercise as well as exercising during and after memory encoding.